Journal ArticleDOI
Feedback for physicists: A tutorial essay on control
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TLDR
In this paper, a tutorial essay aims to give enough of the formal elements of control theory to satisfy the experimentalist designing or running a typical physics experiment and enough to satisfy a theorist wishing to understand its broader intellectual context.Abstract:
Feedback and control theory are important ideas that should form part of the education of a physicist but rarely do. This tutorial essay aims to give enough of the formal elements of control theory to satisfy the experimentalist designing or running a typical physics experiment and enough to satisfy the theorist wishing to understand its broader intellectual context. The level is generally simple, although more advanced methods are also introduced. Several types of applications are discussed, as the practical uses of feedback extend far beyond the simple regulation problems where it is most often employed. Sketches are then provided of some of the broader implications and applications of control theory, especially in biology, which are topics of active research.read more
Citations
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Proceedings ArticleDOI
Enhancing optical Kerr nonlinearity by gain-loss balanced feedback loop
TL;DR: In this article, a gain-loss balanced feedback control structure was proposed to enhance the optical Kerr nonlinearity by introducing a gain loss balanced feedback controller, which consists of two indirectly coupled whispering gallery mode resonators in which one is a loss resonator and the other is a gain resonator.
DissertationDOI
Dynamics and control of quantum statistics in nano-photonic devices
TL;DR: This thesis discusses the dynamics of quantum-optical systems located in complex, nonmarkovian photonic environments, using numerical simulations as well as analytical derivations on time-delayed quantum-coherent feedback effects of the Pyragas type, in analogy to effects well-known in classical physics.
Journal ArticleDOI
Investigation of the dynamics of a Capillary Pumped Loop assisted with a mechanical pump: Influence of pump location
Marie Levêque,Sébastien Dutour +1 more
TL;DR: In this article , the dynamics of a two-phase pump assisted with a centrifugal pump were investigated with both experiments and modeling efforts, and the results revealed that changing the pump location can deteriorate the system robustness with 5 times larger (2.25 kPa) evaporator pressure deviations and the appearance of a system bifurcation to undamped oscillations at high heat load.
Proceedings ArticleDOI
Optimal control of charge transfer
J. Werschnik,E. K. U. Gross +1 more
TL;DR: In this paper, the authors investigated how and to which extent a quantum system can be driven along a prescribed path in space by a suitably tailored laser pulse and calculated the laser field with the help of quantum optimal control theory employing a time dependent formulation for the control target.
Journal ArticleDOI
Note: Split PID control—Two sensors can be better than one
Leith Znaimer,John Bechhoefer +1 more
TL;DR: The consequences of using two probes-one near the heater, one near the sample-and assigning the integral term to the sample probe and the other terms to the heater probe are explored and the split-PID algorithm can outperform PID control loops based on one sensor.
References
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The Structure and Function of Complex Networks
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